CVE-2026-62768: Windows Installer Elevation of Privilege Vulnerability
Published Aug 11, 2026
·Updated
Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
Other sources
Windows Installer Elevation of Privilege Vulnerability
— Microsoft
Affected Software
54 affected componentsFixes available
Microsoft Windows 10=21H2
10.0.19044.7663
Microsoft Windows Server 2025<10.0.26100.33296, <10.0.26100.33222
10.0.26100.3329610.0.26100.33222
Microsoft Windows 10=22H2
10.0.19045.7663
Microsoft Windows 11=23H2
10.0.22631.7517
Microsoft Windows 10=21H2
10.0.19044.7663
Microsoft Windows 10=21H2
10.0.19044.7663
Microsoft Windows 10=22H2
10.0.19045.7663
Microsoft Windows 11=23H2
10.0.22631.7517
Microsoft Windows Server 2016<10.0.14393.9418
10.0.14393.9418
Microsoft Windows 10=22H2
10.0.19045.7663
Microsoft Windows 10=1607
10.0.14393.9418
Microsoft Windows 10=1607
10.0.14393.9418
Microsoft Windows Server 2016<10.0.14393.9418
10.0.14393.9418
Microsoft Windows Server 2025<10.0.26100.33296, <10.0.26100.33222
10.0.26100.3329610.0.26100.33222
Microsoft Windows Server 2022<10.0.20348.5499, <10.0.20348.5440
10.0.20348.549910.0.20348.5440
Microsoft Windows 11=26H1
10.0.28000.2704
Microsoft Windows 11=26H1
10.0.28000.2704
Microsoft Windows Server 2022<10.0.20348.5499, <10.0.20348.5440
10.0.20348.549910.0.20348.5440
Microsoft Windows Server 2012 R2<6.3.9600.23338
6.3.9600.23338
Microsoft Windows Server 2012<6.2.9200.26280
6.2.9200.26280
Microsoft Windows Server 2012 R2<6.3.9600.23338
6.3.9600.23338
Microsoft Windows Server 2012<6.2.9200.26280
6.2.9200.26280
Microsoft Windows 11=25H2
10.0.26200.916810.0.26200.9106
Microsoft Windows 11=25H2
10.0.26200.916810.0.26200.9106
Microsoft Windows 11=24H2
10.0.26100.916810.0.26200.9106
Microsoft Windows 11=24H2
10.0.26100.916810.0.26100.9106
Microsoft Windows 10=1809
10.0.17763.9121
Microsoft Windows Server 2019<10.0.17763.9121
10.0.17763.9121
Microsoft Windows Server 2019<10.0.17763.9121
10.0.17763.9121
Microsoft Windows 10=1809
10.0.17763.9121
Microsoft Windows 10 1607<10.0.14393.9418
Microsoft Windows 10 1607<10.0.14393.9418
Microsoft Windows 10 1809<10.0.17763.9121
Microsoft Windows 10 1809<10.0.17763.9121
Microsoft Windows 10 21h2<10.0.19044.7663
Microsoft Windows 10 21h2<10.0.19044.7663
Microsoft Windows 10 21h2<10.0.19044.7663
Microsoft Windows 10 22h2<10.0.19045.7663
Microsoft Windows 10 22h2<10.0.19045.7663
Microsoft Windows 10 22h2<10.0.19045.7663
Microsoft Windows 11 23h2<10.0.22631.7517
Microsoft Windows 11 23h2<10.0.22631.7517
Microsoft Windows 11 24h2<10.0.26100.9106
Microsoft Windows 11 24h2<10.0.26100.9106
Microsoft Windows 11 25h2<10.0.26200.9106
Microsoft Windows 11 25h2<10.0.26200.9106
Microsoft Windows 11 26h1<10.0.28000.2704
Microsoft Windows 11 26h1<10.0.28000.2704
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016<10.0.14393.9418
Microsoft Windows Server 2019<10.0.17763.9121
Microsoft Windows Server 2022<10.0.20348.5440
Microsoft Windows Server 2025<10.0.26100.33222
Remediation
Event History
Aug 11, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:06 PM
Data Sourced
via MITRE·05:06 PM
DescriptionSeverity
Data Sourced
via NVD·05:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-62768?
The severity of CVE-2026-62768 is classified as high with a score of 7.8.
2
How do I fix CVE-2026-62768?
To fix CVE-2026-62768, users should apply the latest security updates provided by Microsoft for their affected Windows platforms.
3
What systems are affected by CVE-2026-62768?
CVE-2026-62768 affects Microsoft Windows 10, Windows 11, and several editions of Windows Server including 2012, 2016, 2019, 2022, and 2025.
4
What type of vulnerability is CVE-2026-62768?
CVE-2026-62768 is a stack-based buffer overflow vulnerability that allows an attacker to elevate privileges locally.
5
Who can exploit CVE-2026-62768?
CVE-2026-62768 can be exploited by an authorized attacker with local access to the affected system.